# Accident 19860316032729A: Hiller UH12E, Porterville, CA, March 16, 1986

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: March 16, 1986, 10:02 local time
- Place: Porterville, CA
- Damage: Substantial damage
- Phase of flight: Pwr Off Run Land (Autorotation
- Operating rules: General operating rules (Part 91)
- Location: 35.9606° N, 118.9200° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=35.9606&lon=-118.9200&mi=10
- Aircraft: N90475 (not matched to a registry record)
- Reported make and model: HILLER UH12E
- Reported engine: LYC VO540B1A
- Fatal injuries: 0
- Pilot flight hours: 6,700 total, 600 in this make and model, 100 in the last 90 days
- NTSB investigation: [NTSB LAX86LA142](https://openairdocs.org/ntsb/LAX86LA142) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19860316032729A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ENGINE FAILURE DUE TO A BROKEN CYLINDER CONNECTING ROD BOLT. MADE A HARD LANDING IN AN OPEN FIELD.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX86LA142](https://openairdocs.org/ntsb/LAX86LA142), Mar 16, 1986: Hiller 12E (N90475), Poterville, CA, substantial damage

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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